#include<stdio.h>
#include<unistd.h>

int gal=100;
int main()
{
    pid_t id=fork();
    if(id==0)
    {
        while(1)
        {
            printf("我是子进程，gal=%d,&gal=%p\n",gal++,&gal);
            sleep(1);
        }
    }
    else
    {

        while(1)
        {
            printf("我是父进程，gal=%d,&gal=%p\n",gal,&gal);
            sleep(1);
        }
    }
    return 0;
}
